Case for an electronic calculator



FIG. 1 is a view in perspective of a case for an electronic calculator showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is the right side elevational view thereof;

FIG. 5 is the left side elevational view thereof; and

FIG. 6 is an end elevational view thereof. 

The ornamental design for a case for an electronic calculator, substantially as shown. 